Your basic problem is that you refuse to accept the validity of studies done by experts with far more knowledge and training than you. You constantly want to use exceptions to the majority finding to suggest that the data is faulty or not universally applicable. You are incorrect in this. Your bias is showing. What you need to do is to get away from the ideologues and start listening to the scientists and accepting that they know what they are doing.

It is like the people who are anti-vaccine. They point to the handful of cases where someone has a bad reaction or gets the disease anyway and say see it doesn’t work. What they ignore is the huge body of evidence that it’s very effective in terms of preventing disease and saving lives. Trying to pick exceptions to cast doubt on the broader principal is disingenuous and shows the lack of understanding of science and logic.

The studies I referenced regarding psychological testing and pet scans, are rocksolid and demonstrate the fact that gender has a biological basis. They are not based upon social or cultural or learned behavior. They were designed to eliminate these kinds of variables. It is clear that you do not believe or do not want to believe that gender is a characteristic of people which is distinct from external sex characteristics and does not always match. You need to get beyond this misconception. Starting to believe the scientists would be a good way to begin.